## Contents

# HW7 (Chapter 13, Problem 6, MA453, Fall 2008, Prof. Walther

## Question

Find a nonzero element in a ring that is neither a zero-divisor nor a unit.

## Answer 1

In the ring Z, 2 is neither a zero-divisor (because Z is an integral domain, and hence has no zero-divisors) nor a unit.

- --Neely Misner

## Answer 2

Write it here.